Surface configuration of a rear bumper for a vehicle



FIG. 1 is a front view of a surface configuration of a rear bumper for a vehicle according to our novel design; and,

FIG. 2 is a left, perspective view of the surface configuration of a rear bumper for a vehicle according to our novel design, the right perspective view being mirror symmetrical. 

The ornamental design for a surface configuration of a rear bumper for a vehicle, as shown and described. 